[Guide] Intel Framebuffer patching using WhateverGreen

[pastrychef]

System Information as seen in the attached screenshot, there's no "Metal: supported" entry. CINEBENCH hangs for a few minutes then fails (also attached screenshot).

Weird. Is this on a clean install of macOS?

 

[maddiez]

Weird. Is this on a clean install of macOS?

Not clean install, but everything was running fine with my old 7970 card, the only thing changed is the Vega 64.

 

[maddiez]

From IORegistryExplorer, I can see the framebuffer is properly loaded, even the ports are correct. Somehow it just doesn't have acceleration. Disabling IGPU doesn't help either.

 

[maddiez]

From IORegistryExplorer, I can see the framebuffer is properly loaded, even the ports are correct. Somehow it just doesn't have acceleration. Disabling IGPU doesn't help either.

I tried to turn on Inject Intel in Clover and injecting ig-platform-id 0x3E910003, both GPUs show up in System Information, with "Metal support" field available showing supported, but still there are screen artifacts, and anything that uses Metal (Chrome etc) will lead to a kernel panic and reboot.

 

[pastrychef]

Not clean install, but everything was running fine with my old 7970 card, the only thing changed is the Vega 64.

I tried to turn on Inject Intel in Clover and injecting ig-platform-id 0x3E910003, both GPUs show up in System Information, with "Metal support" field available showing supported, but still there are screen artifacts, and anything that uses Metal (Chrome etc) will lead to a kernel panic and reboot.

You should not see IGPU in System Information. Try 3E920003.

I suspect something was installed that's causing your problem. I would test a clean install and see if you have the same problem. If everything works well with a clean install, you know somethat that was installed is giving you problems. If you have the same problem, you know that it's a configuration issue and not macOS or software.

 

[maddiez]

You should not see IGPU in System Information. Try 3E920003.

I suspect something was installed that's causing your problem. I would test a clean install and see if you have the same problem. If everything works well with a clean install, you know somethat that was installed is giving you problems. If you have the same problem, you know that it's a configuration issue and not macOS or software.

OK. I'll backup and clean install when I got time. Will report back, thanks!

 

[speedyrazor]

Pretty much everything is working on my Dell XPS with Framebuffer patching using WhateverGreen, except the Displayport. this was working, but since using this method I get nothing out. I have tried using the FB Patcher with DP -> HDMI plist config, but still nothing. Any help would be very appreciated. I have attached debug logs.
Thanks.

 

[maddiez]

You should not see IGPU in System Information. Try 3E920003.

I suspect something was installed that's causing your problem. I would test a clean install and see if you have the same problem. If everything works well with a clean install, you know somethat that was installed is giving you problems. If you have the same problem, you know that it's a configuration issue and not macOS or software.

It turns out, the boot argument "-xcpm" prevents AMDRadeonX5000_AMDVega10GraphicsAccelerator from loading, which results in no acceleration.

 

[pastrychef]

It turns out, the boot argument "-xcpm" prevents AMDRadeonX5000_AMDVega10GraphicsAccelerator from loading, which results in no acceleration.

I've never enabled that.

 

[maddiez]

I've never enabled that.

Yes, I just noticed. It was a leftover argument that enabled native power management before 10.13, and since deprecated. I didn't think it would affect this but it did.

Thanks for your help!